In small mammals, the degree of micro- and mesowear of molars depends on the feed hardness, abrasiveness, and some other characteristics. Analysis of micro- and mesorelief of the paleontological material is used for reconstruction of some animal diet parameters. Small mammals pass through a series of complex transformations on the way from the objects of biocenosis to paleontological objects. Bone remains underwent transformations during accumulation and fossilization. In particular, bone remains from ornithogenous deposits were exposed to the bird digestive system elements. We have experimentally studied changes in some parameters of the narrow-headed vole (Microtus gregalis) molars derived from the owl pellets. Comparison of the same samples before and after exposure to the digestive system of the polar owl (Nyctea scandiaca) and eagle owl (Bubo bubo) showed that the tooth enamel microrelief undergoes serious changes and therefore, provides no information on the intravital diet of voles. A different degree of preservation of the characteristics of the mesorelief was shown. Depending on this, an assessment of their applicability to paleoreconstructions was given.

中文翻译：

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实验喂养猫头鹰前后，田鼠磨牙的牙齿微磨损和中磨损。

在小型哺乳动物中，磨牙的微磨损和中磨耗程度取决于饲料的硬度，磨蚀性和其他一些特征。古生物学材料的微观和中观浮雕的分析用于重建某些动物饮食参数。小型哺乳动物在从生物活检对象到古生物学对象的过程中经历了一系列复杂的转变。在积累和化石过程中，骨骼仍然经历了转变。特别是，来自鸟类异种沉积物的骨骼残留物暴露于鸟类的消化系统元素。我们已经实验研究了从猫头鹰颗粒中分离出的窄头田鼠（Microtus gregalis）磨牙的某些参数的变化。暴露于极地猫头鹰（Nyctea scandiaca）和and（Bubo bubo）消化系统之前和之后的相同样品的比较表明，牙釉质微浮雕发生了严重变化，因此没有提供有关田鼠活体饮食的信息。显示了对中浮雕特征的不同程度的保留。以此为基础，对它们在古构造中的适用性进行了评估。